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path: root/drivers/mmc/host/sh_mmcif.c
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Diffstat (limited to 'drivers/mmc/host/sh_mmcif.c')
-rw-r--r--drivers/mmc/host/sh_mmcif.c74
1 files changed, 27 insertions, 47 deletions
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index d9a655f47d41..dd64b8663984 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -248,7 +248,6 @@ struct sh_mmcif_host {
int sg_idx;
int sg_blkidx;
bool power;
- bool card_present;
bool ccs_enable; /* Command Completion Signal support */
bool clk_ctrl2_enable;
struct mutex thread_lock;
@@ -1064,16 +1063,6 @@ static void sh_mmcif_clk_setup(struct sh_mmcif_host *host)
host->mmc->f_max, host->mmc->f_min);
}
-static void sh_mmcif_set_power(struct sh_mmcif_host *host, struct mmc_ios *ios)
-{
- struct mmc_host *mmc = host->mmc;
-
- if (!IS_ERR(mmc->supply.vmmc))
- /* Errors ignored... */
- mmc_regulator_set_ocr(mmc, mmc->supply.vmmc,
- ios->power_mode ? ios->vdd : 0);
-}
-
static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct sh_mmcif_host *host = mmc_priv(mmc);
@@ -1091,42 +1080,32 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
host->state = STATE_IOS;
spin_unlock_irqrestore(&host->lock, flags);
- if (ios->power_mode == MMC_POWER_UP) {
- if (!host->card_present) {
- /* See if we also get DMA */
+ switch (ios->power_mode) {
+ case MMC_POWER_UP:
+ if (!IS_ERR(mmc->supply.vmmc))
+ mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd);
+ if (!host->power) {
+ clk_prepare_enable(host->clk);
+ pm_runtime_get_sync(dev);
+ sh_mmcif_sync_reset(host);
sh_mmcif_request_dma(host);
- host->card_present = true;
- }
- sh_mmcif_set_power(host, ios);
- } else if (ios->power_mode == MMC_POWER_OFF || !ios->clock) {
- /* clock stop */
- sh_mmcif_clock_control(host, 0);
- if (ios->power_mode == MMC_POWER_OFF) {
- if (host->card_present) {
- sh_mmcif_release_dma(host);
- host->card_present = false;
- }
+ host->power = true;
}
+ break;
+ case MMC_POWER_OFF:
+ if (!IS_ERR(mmc->supply.vmmc))
+ mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
if (host->power) {
- pm_runtime_put_sync(dev);
+ sh_mmcif_clock_control(host, 0);
+ sh_mmcif_release_dma(host);
+ pm_runtime_put(dev);
clk_disable_unprepare(host->clk);
host->power = false;
- if (ios->power_mode == MMC_POWER_OFF)
- sh_mmcif_set_power(host, ios);
- }
- host->state = STATE_IDLE;
- return;
- }
-
- if (ios->clock) {
- if (!host->power) {
- clk_prepare_enable(host->clk);
-
- pm_runtime_get_sync(dev);
- host->power = true;
- sh_mmcif_sync_reset(host);
}
+ break;
+ case MMC_POWER_ON:
sh_mmcif_clock_control(host, ios->clock);
+ break;
}
host->timing = ios->timing;
@@ -1519,23 +1498,23 @@ static int sh_mmcif_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, host);
- pm_runtime_enable(dev);
- host->power = false;
-
host->clk = devm_clk_get(dev, NULL);
if (IS_ERR(host->clk)) {
ret = PTR_ERR(host->clk);
dev_err(dev, "cannot get clock: %d\n", ret);
- goto err_pm;
+ goto err_host;
}
ret = clk_prepare_enable(host->clk);
if (ret < 0)
- goto err_pm;
+ goto err_host;
sh_mmcif_clk_setup(host);
- ret = pm_runtime_resume(dev);
+ pm_runtime_enable(dev);
+ host->power = false;
+
+ ret = pm_runtime_get_sync(dev);
if (ret < 0)
goto err_clk;
@@ -1579,12 +1558,13 @@ static int sh_mmcif_probe(struct platform_device *pdev)
sh_mmcif_readl(host->addr, MMCIF_CE_VERSION) & 0xffff,
clk_get_rate(host->clk) / 1000000UL);
+ pm_runtime_put(dev);
clk_disable_unprepare(host->clk);
return ret;
err_clk:
clk_disable_unprepare(host->clk);
-err_pm:
+ pm_runtime_put_sync(dev);
pm_runtime_disable(dev);
err_host:
mmc_free_host(mmc);